Combustion-motor



PATENTED JAN. 26, 1904.

2 SHEETS8HEET 2.

J. F. BENTZ.

COMBUSTION MOTOR. APPLICATION FILED JUNE 19. 1903. no MODEL.

.i SUM? M M UNITED STATES Patented January 26, 1904.

PATENT OFFICE.

COMBUSTION-MOTOR.

SPECIFICATION forming part of Letters Patent No. 750,336, dated January26, 1904.

Application filed June 19 1903.

To aZZ whom it may concern:

Be-it known that I, J A0013 F. BENTZ, a citizen of the United States,residing at Schenectady, county of Schenectady, and State of New York,have invented certain new and useful Improve:

ments in Combustion-Motors,of which the fol-' lowing is a specification.

The lnventlon relates to such improvements; and 1t consists of the novelconstruction and combination of parts hereinafter described andsubsequently claimed.

Reference may be had to the accompanying drawings and the referencecharacters marked thereon, which form a part of this specification.

Similar characters refer to similar parts in the several figures.

Figure 1 of the drawings is a view in end elevation of the improvedcombustion-motor. Fig. 2 is a vertical section. taken on the broken line2 2m Fig. 1. Fig. 3 is a similar section showing a movement of the diskand piston. Fig. 4 is a horizontal central section taken on the brokenline 4L 4: in Figs. 1' and 2. Fig. 5 is a sectional view similar to thatshown in Fig. 3, showing a modified form of construction. Fig. 6 is asimilar section showing a movement of the disk and piston. Fig. 7 iscentral horizontal section of the countersunk wall of the piston-chambercase detached. Fig. 8 is a similar section of the case, wall, and disk,taken on the broken line 8 8 in Fig. 6.

Fig. 9 is a plan view of the disk and pin and' the crank-disk 12 andcrank-shaft 13. (Shown detached in Fig. 9 and inserted in thecountersunk wall in Fig. 8.)

The piston 15 is composedof a rectangular Serial No. 162,211. (Nomodel.)

frame which is adapted to reciprocate in the piston-chamber 7, formingpractically a gastight connection with the end walls 3 and 4 and twoopposite sides ofthe frame 2, also with the inner face 16 of the disk,which is flush with the inner surface of the wall 4:, as shown. Theinner surface 17 of the sides of the piston form a slideway for thebearingblocks 18 inclosing the crank-pin 20.

The foregoing description does not differ from that of similar partscontained in my improved fluid-motor for which I have filed anapplication for a patent concurrently here- Wit 1.

In my improved comb ustion-motor that part of the piston-chamber locatedon one side of the piston into which the ingredients of the explosivemixture are introduced may be termed the mixing-compartment and thatupon the opposite side of the piston in which the igniting mechanismacts upon the mixture the combustion-compartment.

The mixing-compartment 21 is provided with an induction-port, which maybe through a supply-tube 22, leading from a source of supply. (Notshown.) As shown in the first four figures of the drawings, thesupply-tube is screw-threaded and inserted in a similarthreaded aperturein the frame 2. Its portaperture is controlled by the check-valve 23,secured to the frame by screw 24.

The combustion-chamber 25 may be provided with any known means forigniting an explosive mixture, as the electrodes 26, separated a shortdistance from each other and connected, respectively, with the ends ofan induction-coil and the contact 27, adapted to be electricallyconnected by a metallic plug 28 and form an electric circuit containinga battery and primary coil (not shown) in the usual Well-known manner.The mixing and combustion con1- partments are adapted'to be connected atcertain times by the by-pass port 30, contained in the frame 2 andleading around the piston. The combustion compartment is provided withan eduction-port for exhausting the same, which may be tube 31, leadingfrom such compartment to the atmosphere.

When the parts are in the position shown in Fig. 2, the electric circuitis completed by contact of plug 28 with the contact 27, and an electricspark passes from one of the electrodes 26 to the other, and if thecombustion' chamber has been charged with an explosive material anexplosion occurs, which acts upon the piston and causes it and thecrank-pin to move from the position shown in Fig. 2 to that shown inFig. 3, provided, of course, that the parts had sufiicient momentum orother application of force to carry the crank-pin beyond the dead-centerline. The mixingcompartment having been filled with an explosivegasmixture through the inductionport and closed by the check-valve, themixture will be compressed continually by the movement of the pistonuntil the piston opens the by-pass port to the combustion-compartment,after which the compressed gas will expand and rush into thecombustion-compartment, the products of combustion therein exhaustingthrough the eduction-port, which has been opened by the piston beforethe by-pass port was opened. As the momentum of the parts, which may beassisted by a fly-wheel, (not shown,) carries the piston and pin fromthe position shown in Fig. 3 to that shown in Fig. 2 the eduction andby-pass ports are closed by the piston and a new supply of explosivematerial drawn into the mixing-compartment, the check-valve readilyyielding for that purpose, and the operation will be re.

peated and continued as long as the supply of explosive materialcontinues.

When desired, a disk-controlled inductionport may be substituted for theport controlled by the check-valve by inserting the supplypipe L0 in thecountersunk wall, as seen in Fig. 8, and providing a port-aperture 41,leading therefrom into the countersink, and providing the outer side ofthe disk with a segmental annular groove 4c2, adapted to register a partof the time during each rotation of the disk with the port-aperture 4:1and with a segmental annular plane surface 43, extending from one end ofthe groove to the other end and adapted to close such aperture betweenthe intervals of registering with the groove. The disk is also providedwith one or more port-holes 44, leading from such groove into thepiston-chamber. The plane surface serves to close the induction-portduring the action of the explosive force upon the piston, and byarranging the port-holes near the forward end of the groove as shown inFig. 5 there can be no communication through the groove from one side ofthe piston to the opposite side, yet the induction-port will remain opento the mixing-compartment practically all the time such compartment isbeing increased in size by the movement of the piston toward thecombustion-compartment. The

eduction-port may also be controlled by the rotary disk when desired.This may be accomplished by providing the disk and shaft with anexhaust-passage 50, leading to the atmosphere at the time of exhaustthrough a lateral slot 51 in the shaft and a port-hole 52 in the bearing53. The relative position of the parts is shown partly by dotted linesin Fig. 5. At the proper time for exhausting the combustion-compartmentthe two slots 51 and 52 register with each other, and at all other timesthe slot 51 is closed. The exhaust preferably commences just before theby pass-port is opened to the combustion-compartment.

What I claim as new, and desire to secure by Letters Patent is 1. In acombustion-motor having induction and eduction ports, the combinationwith the case having a piston-chamber; of a crank-disk rotary withinsuch chamber and in engagement with the piston; a crank-shaft fixed tothe disk and projecting exteriorly of the case; a piston reciprocatoryin the piston-chamber; an operative connection in thepiston-chamber-between the disk and piston; and means for igniting anexplosive mixture in the piston-chamber, substantially as described.

2. In a combustion-motor, the combination with the case having apiston-chamber; of a crank-disk rotary within such chamber and inengagement with the piston; a crank-shaft fixed to the disk andprojecting exteriorly of the case; a piston reciprocatory in thepistonchamber; an operative connection in such chamber between the diskand piston; means for igniting an explosive mixture in thepiston-chamber; a valve-controlled inductionport; and a disk-controllededuction-port, substantially as described.

3. In a combustion-motor having induction and eduction ports, thecombination with the case having a piston-chamber; of a crank-diskrotary within such chamber and in engagement with the piston; acrank-shaft fixed to the disk and projecting exteriorly of the case; apiston reciprocatory in the case, and dividing the piston-chamber intomixing and combustion compartments; a piston-controlled bypass portleading from the mixing-compartment to the combustion-compartment; meansfor ignitingan explosive mixture in the com-1 bustion-compartment; andan operative connection in the piston-chamber between the disk andpiston, substantially as described.

1. In a combustion-motor, the combination with the case havingapiston-chamber; of a crank-disk rotary within such chamber and inengagement with the piston; a crank-shaft fixed to the disk andprojecting exteriorly, of the case; a piston reciprocatory in thepistonchamber; an operative connection between the disk and piston insuch chamber; means for igniting an explosive mixture in thepistonchamber; a valve-controlled induction-port; a piston-controlledby-pass port; and an eduction-port comprising an aperture in the caseleading to the atmosphere and a passage-way in the disk leading from thepiston-chamber and adapted to register with the port-aperture in thecase after each explosive combustion and while open to thecombustion-chamber, substantially as described.

5. In a combustion-motor, the combination with a piston-chamber case,having a countersink in a wall of the piston-chamber and aninduction-aperture opening into such countersink; of a piston; acrank-disk, rotary in such countersink and in engagement with thepiston, having a segmental annular plane surface for closing theinduction-aperture and provided with a segmental annular groove adaptedto register with such aperture, at each rotation of the disk, and one ormore port-holes adapted to connect such groove with the piston-chamberalternately on opposite sides of the piston; means for explodingacombustible mixture in the piston-chamber; and operative connectionsbetween the disk and piston, substantially as described.

6. In a combustion-motor, the combination with a piston-chamber case,having a countersink in a wall of the piston-chamber and aninduction-aperture opening into such countersink; of a piston, dividingthe piston-chamber into a mixing-compartment and acombustioncompartment; a crank-disk, rotary in such countersink, andforming a part of the compartment-wall in both the mixing and combustioncompartments, having a segmental annular plane surface for closing theinduction-aperture and provided with a segmental annular groove adaptedto register with such aperture and one or more port-holes adapted toconnect such groove with both compartments alternately at each rotationof the disk; a piston-controlled by-pass port leading from themixing-compartment to the combustioncompartment; means for exploding acombusti-ble mixture in the combustion-compartment; means for exhaustingsuch compartment; and operative connections between the disk and piston,substantially as described.

7. In a combustion-motor having induction and eduction ports thecombination with a case having a combustion-chamber; of a crankdiskrotary within such chamber and in engagement with the piston; acrank-shaft fixed to the disk and projecting exteriorly of the case; apiston reciprocatory in the pistonchamber; an operative connection inthe piston-chamber between the crank-disk and piston consisting of acrank-pin fixed to the disk and a bearing for the pin movable inaslideway in the piston;'and means for igniting an explosive mixture inthe piston-chamber.

In testimony whereof I have hereunto set my hand this th day of June,1903.

JACOB F. BENIZ. Witnesses:

JOHN G. HAMILL, GEO. A. MOSHER.

